Question

Which of these events occurs first in muscle fiber contraction? Multiple Choice Calcium ions diffuse from sarcoplasmic reticulum into the sarcoplasm and bind to troponin molecules. Acetylcholine diffuses across a gap at a neuromuscular junction. Acetylcholine is released from the axon of the motor neuron. The muscle fiber membrane is stimulated and a muscle impulse travels deep into the fiber through transverse tubules.

Name: which of these events occurs first in muscle fiber contraction multiple choice calcium ions diffuse from sarcoplasmic reticulum into the sarcoplasm and bind to troponin molecules acetylcholi 64622
Uploaded: 2022-11-07T15:07:05-08:00
Duration: 2 min 20 s
Channel: Sri K
Description: which of these events occurs first in muscle fiber contraction multiple choice calcium ions diffuse from sarcoplasmic reticulum into the sarcoplasm and bind to troponin molecules acetylcholi 64622

          Which of these events occurs first in muscle fiber contraction?
Multiple Choice
Calcium ions diffuse from sarcoplasmic reticulum into the sarcoplasm and bind to troponin molecules.
Acetylcholine diffuses across a gap at a neuromuscular junction.
Acetylcholine is released from the axon of the motor neuron.
The muscle fiber membrane is stimulated and a muscle impulse travels deep into the fiber through transverse tubules.

Added by Susana S.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Sri K

11/07/2022

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Which of these events occurs first in muscle fiber contraction? Multiple Choice Calcium ions diffuse from sarcoplasmic reticulum into the sarcoplasm and bind to troponin molecules. Acetylcholine diffuses across a gap at a neuromuscular junction. Acetylcholine is released from the axon of the motor neuron. The muscle fiber membrane is stimulated and a muscle impulse travels deep into the fiber through transverse tubules.